CARE Right

Committed to ALARA

Clinical Examples: Scanning with the right dose

CARE Right aims at finding the right dose for every individual patient. What matters is the right balance between image quality and radiation dose. All of CARE Right’s individual areas – Right Dose Technology, Right Dose Levels, and Right Dose Management – come together in the following examples.

Case 2: CT chest abdomen pelvis angiography

SOMATOM Force

Diagnosis: A re-evaluation CTA using only 20 mL of contrast media confirmed a Stanford B aortic dissection, beginning behind the junction of the left subclavian artery and stretching to just below the diaphragm, with a new partially thrombotic occlusion of the false lumen.(Image: University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University)

Used iterative reconstruction method: ADMIRE

Collimation: 192 x 0.6 mm

80 kV, 140 mAs

Flash scan mode

CTDIvol: 2.09 mGy

Scan time: 0.91 s

DLP: 154.6 mGy cm

Scan length: 673.6 mm

Eff. dose: 2.3 mSv

Rotation time: 0.25 s

Case 3: CT abdomen pelvis

SOMATOM Perspective

Diagnosis: The radiologists found the right balance between applied radiation and image quality. As the habitus of the patient is larger than the reference patient, 5.6 mSv was the right effective dose to achieve this balance. CT images showed a cauliflower-like, broad-based soft tissue mass located on the left-posterior wall of the rectum. It measured 25 x 22 mm and was causing luminal narrowing.(Image: Department of Radiology, Panshi City Hospital, Lilin, P. R. China)